Sharpener for razor-blades.



H. B. YOUNG.

SHARPENER FOR RAZOR BLADES.

APPLICATION FILED SEPT. I4, I915- 1,2213263. Patented Apr. 3, 1917.

4 SHEETS-SHEEI I Witnemwo H. B YOUNG.

SHARPENER FOR RAZOR BLADES.

APPLICATION FILED SEPT, I4, I9I5.

4 SHEETS-SHEET 2.

I I I Patented App. 3,1917.

Q Harry .B. Ybun y wih 1 0 mm I aawzm L (Hazing H. B. YOUNG. SHARPENERFOR RAZOR BLADES. I

APPLlC ATION rmzo SEPT. 14. 1915.

Patented Apr. 3,1917.

4 SHEETS-SHEET 3.

Witneooeo H. B. YOUNG.

SHARPE'NER FOR RAZOR BLADES.

Patented Apr. 3, 1917.

.m M 4 T Pl E s D E L Hr N 0 U A c U P DI A I 3 6 9w 1 w 1 '4SHEETS-SHEET 4.

UNITED STATES PATENT OFFICE.

HARRY BENTON YOUNG, OF CINCINNATI, OHIO.

SHABPENER ron RAZORJBLADES.

Application filed September 14, 1915.

To all whom it may concern:

Be it known that I, HARRY BENTON Yonne, a citizen of the United States,and a resident of Cincinnati, in the county of Hamilton and State ofOhio, have invented new and useful Improvements in Sharpeners forRazor-Blades, of which the following is a specification.

| My invention relates to sharpeners for razor blades.

The object of my invention is to produce a sharpener for razor cessivelyhone, sharpen and plurality of blades, and to impart to each blade adiagonal or barbers edge. Another object thereof is to produce means foralternatelygrinding the opposite faces of razor blades; A further objectthereof is to produce means for holding razor blades in posi tion to bealternately ground by a pair 0 parallel revolving drums and forconveying same from one end to .the opposite ends of the drums duringthe movement of the blades between the drums in alternating contacttherewith, and a still further object of my invention is to produce amore, simple,

cheap and eliicient razor sharpening machine than has heretofore beenattained.

To these ends and for others that will hereinafter be disclosed, myinvention includes the combination and arrangement of component parts tobe set forth herein, and more particularly pointed out in the claims.

In the accompanying drawings in which like reference characters indicatesimilar parts,

'Figure 1 is a front elevation;

Fig. 2 is a plan view with the blade conveyer broken away,

Fig. 3 is a vertical sectional on the line 33 of Fig. 1;

Fig. 4 is a similar view l4 of Fig. 1; i

Fig. 5 is a front view of my blade holder,

Fig. (3 is a side view of the same;

Fig. 7 is a perspective view of the head of my blade holder with thestem removed;

Fig. 8 is a cross-sectional view of the clamping jaws of my blade holdertaken on the line 8-8 of Fig. 6;

Fig. 9 is a top plan view of my electric switch;

view taken taken on the line Specification of Letters Patent.

blades adapted to sucstrop one or a Patented Apr. 3, 1917.

Serial No. 50,621.

Fig. 10 is a detail perspective view of a modified form of my conveyer,and ,15 Fig. 11 is a similar view of another modification of the same.

Referring now to the drawings, 1 designates a rectangular base orplatform upon which are erected the vertical frames 2 and 3 adjacent tothe ends of the base, and on which are provided suitable mountings andbearings for the sharpening drums, driving gears and blade carryingmechanism hereinafter described.

Mounted between said frames in suitable bearings thereon, I provide twoparallel drums 4 and 5 spaced a suitable distance apart to permit therazor-blade holders 6 to be suspended between same and to oscillate Eachof said drums is covered with a layer of leather 7 or other suitablematerial, which as shown is spirally wound upon the surface in acontinuous'strip,having a spiral groove between the contacting edges toreceive the accumulation ,of grit resulting from the sharpeningoperation. The leather strips, thus described, are wound in oppositedirections upon the adjacent drums, whereby a diagonal edge will beground upon both faces of blades when alternately pressed upon therevolving faces of the drums, and said strips may be "provided withperforations C to expedite the sharpening operation.

Said drums are tor Mbelted with ried on the shaft of the drum 4. Thepinion 8 is carried on the same shaft and meshes with the idle gear 9.Said idle gear meshes with the gear 10 diets of the drum journals, whichmeshes with the gear 11 carried onthe shaft of the drum 5, by whichtrain the drums are revolved oppositely and toward each other. Saidgears are arranged to revolve both drums 4 and 5 at the same rate ofspeed.

As shown in the drawing, one end of each of the drums is covered orfilled with emery or other grinding substance at Gr, while the driven bythe electric mo- ..le'zither covering next adjacent thereto on the wheelD rigidly car-- mounted interme ening surface, and the balance of thesun face of the drums is of plain leather to give the finishing orstropping treatment to the blades in their travel from one end of thedrums to the opposite, as hereinafter described.

The conveyor bar 12 is journaled on the frames '2 and 3 above andbetween the drums l and 5, and is connected with the gear wheel 10 bythe pitman 13 eccentrically attachcd thereto, by which the bar is rockedon its hearings to bring the razor blades into alternate contact withthe drums when suspended thereon by the hangers 1 Adjacent to saidconveyer, is provided a worm 15 adapted to contact with the hangers llwhen suspended, and to advance the hangers and blade holders securedthereon by regular steps throughout the length of the drums. Said wormis loosely mounted in journal bearings at each end, and adja cent to oneend thereof is carried a ratchet wheel 16 adapted to he engaged by thepawl 17 carried on the rocking bearings of the conveyer bar 12, in suchposition and relation that the pawl normally rides over the teeth of theratchet wheel and allows the worm to remain inactive except at theperiod that the blade holders are swung from one drum to the other afterhaving contacted with the opposite faces of both. In operation,therefore, the hangers and blade holders are advancedfrom one endthroughout the length of the drums in regular steps and at the period inthe oscillation of the blade holders that they are out of contact withthe drums, except at the grinding ends G over which the worm threads areabsent to allow the hangers and blades to remain under treatment of thegrinding surface as long as considered nccessary by the operator.

The blade holder of my device comprises the hanger 18 having atransverse slot 19 by which it suspended on the conveyor bar 12. On oneside of the slot are provided fingers 90 adapted to contact; with thethreads on the worm, while the opposite side is pierced at 2-1 toreceive the head 23 of the shanlr on vhich the jaws are carried.Depending from said head is carried a spring shank 25 to the lower endof which are attached the, clamping jaws 26 adapted to hold the blades.

One of said jaw members is rigidly atttH'llOtl to the shank while theother member is movably secured thereon by the thumb screw 27 passingthrough both members. Depending lips 28 are carried on the lower ends ofthe jaws for grip 'iing' the razor blades between the edges thereof Itwill be obvious thatthe spring shank 35 will permit yielding contact ofthe dges of the blades with the face of the sharpening drums.

The drums and worm, as before stated, are driven by the motor M, thecurrent for which is conducted through the switch S mounted on the frameadjacent to the finishing end of the conveyor bar 12. Said switch isprovided with a curved pivoted arm S projecting into the track of thetraveling blade holders which arm will be encountered by an approachinghanger and moved out of electrical contact before the hanger becomesjammed against the frame, whereby the action of the machine is stoppedbefore injury can occur.

.In Fig.10 of the drawings is illustrated a modified form of conveyorbar and worm in which the worm is carried at one side of the bar, and inFig. 11 is shown a further form in which the worm is secured above thebar.

Inthe operation of my machine, one or more hangers and blade holders maybe suspended on the conveyor bar 12 as shown in Figs. 1 and 3 of thedrawings with the fingers 20 contacting with. the worm 15. The drums 4.and 5 are revolved by the train of gears 8, 9, 10 and 11, and theconveyor bar is rocked by the pitman 13 to oscillate the blade holdersinto alternate contact with the opposite drums. .1\'ftl' the bladescarried in the holders have been ground on both edges by the oppositedrums, the hangers and blade holders are advanced on the conveyor bar bythe rotation of the worm 15' by the engagement of the pawl 17 with theratchet wheel 16 which action occurs entirely while the blades are outof Contact with the drums.

Ha ing thus described my invention, what I claim as new and desire to besecured by Letters Patent, is-- 1. In a blade shar 'iening machine, thecombination with a trame, of a pair of parallel drums mounted thereonwith a space between same, means or rotating said drums oppositely andtoward each other,

blade holders mounted opposite the space between the drums, means foroscillating the blade holders to alternately contact blades held thereonwith the perimeters of the drums and means for conveying the ladeholders longitudinally of the drums in stepped stages during theoscillation of the holders while out of contact; with the drums.

2. In a blade sharpening machine, the combination with a frame, of apair of parallel drums mounted thereon having a space between same,means for rotating said drums oppositely and tmvard each other, aconveyor bar mounted on said frame opposite the. space between thedrums. blade holders carried on said conveyor. means for oscillating theblade holders to alternately con-' tact blades held therein with theperimcters of the opposite drums. and means coat-ting with the drumrotating means and the said oscillating means for conveving the bladeholders longitudinally of the drums in rocking conveyer bar mounted onsaid frame' opposite the space between the drums, blade holders slidablycarried on said conveyer, means forrocking said conveyer bar tooscillate the blade holders between the drums, and means coacting withthe bar rocking means fo advancing the blade holders longitudinally ofthe drums in stepped stages during' the oscillation of the holders whileout of contact with the drum. p

at. In a blade sharpening machine, the combination with "a frame, of apair of parallel drums mounted thereon having a space between same,means for rotating said drums oppositely and toward each other, arocking conveyer'bar mounted on said frame opposite the space betweenthedrums, blade holders slidably carried on said conveyer, a worm adjacentto said conveyer-bar in con-. taeting relation with said blade holders,means for riwhing said conveyor-bar to oscillate the blade holdersbetween the drums and means coacting with the bar-rocking BEST AVAILABLEcop means for actuating the worm for advancing the blade holderslongitudinally on the rockbetween the same. a train of driving gears forrotating said drums oppositely and toward each other, a ccmveyer-barjonrnaled on said frame opposite the space between the drums, bladeholders remo\'abl and slidably carried on said eonveyer, a worm looselymounted on said frame adjacent to said comeyer-bar in contactingrelation with said blade holders, a shaft rigidly attached to saideonreyer-bar at one end and pivoted on one of the driving wheelsforimparting a lateral rocking motion to the conveyer-bar, a ratchetwheel rigidly carried on said worm, and a pawl carried on the bearingsof said bar for intermittently engaging said ratchet heel to actuate theworm for advancing the blade holders longitudinally

